@article{PismaZhETF.45.399,
    title = {Three- and four-photon excitation of nonequilibrium carriers in broad-band crystals},
    author = {Garnov, S. V. and Epifanov, A. S. and Klimentov, S. M. and Manenkov, A. A. and Prokhorov, A. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {8},
    pages = {399},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18791.shtml},
}